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ack/lang/cem/cemcom.ansi/sizes.h

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Initial revision
1989-02-07 11:04:05 +00:00
/*
* (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
* See the copyright notice in the ACK home directory, in the file "Copyright".
*/
Changed Header into Id
1994-06-27 08:03:14 +00:00
/* $Id$ */
Initial revision
1989-02-07 11:04:05 +00:00
/* VARIOUS TARGET MACHINE SIZE DESCRIPTORS */
First milestone of replacing the build system. --HG-- branch : dtrg-buildsystem rename : lang/cem/cpp.ansi/Parameters => lang/cem/cpp.ansi/parameters.h
2013-05-12 19:45:55 +00:00
#include "parameters.h"
Initial revision
1989-02-07 11:04:05 +00:00
#ifndef NOCROSS
extern arith
short_size, word_size, dword_size, int_size, long_size,
Begin to add `long long` to C compiler for linux386. Add long long type, but without literals; you can't say '123LL' yet. You can try constant operations, like `(long long)123 + 1`, but the compiler's `arith` type might not be wide enough. Conversions, shifts, and some other operations don't work in i386 ncg; I am using a union instead of conversions: union q { long long ll; unsigned long long ull; int i[2]; }; Hack plat/linux386/descr to enable long long (size 8, alignment 4) only for this platform. The default for other platforms is to disable long long (size -1). In lang/cem/cemcom.ansi, - BigPars, SmallPars: Add default size, alignment of long long. - align.h: Add lnglng_align. - arith.c: Convert arithmetic operands to long long or unsigned long long when necessary; avoid conversion from long long to long. Allow long long as an arithmetic, integral, or logical operand. - ch3.c: Handle long long like int and long when erroneously applying a selector, like `long long ll; ll.member` or `ll->member`. Add long long to integral and arithmetic types. - code.c: Add long long to type stabs for debugging. - conversion.c: Add long long to integral conversions. - cstoper.c: Write masks up to full_mask[8]. Add FIXME comment. - declar.g: Parse `long long` in code. - decspecs.c: Understand long long in type declarations. - eval.c: Add long long to operations, to generate code like `adi 8`. Don't use `ldc` with constant over 4 bytes. - ival.g: Allow long long in initializations. - main.c: Set lnglng_type and related values. - options.c: Add option like `-Vq8.4` to set long long to size 8, alignment 4. I chose 'q', because Perl's pack and Ruby's Array#pack use 'q' for 64-bit or long long values; it might be a reference to BSD's old quad_t alias for long long. - sizes.h: Add lnglng_size. - stab.c: Allow long long when writing the type stab for debugging. Switch from calculating the ranges to hardcoding them in strings; add 8-byte ranges as a special case. This also hardcodes the unsigned 4-byte range as "0;-1". Before it was either "0;-1" or "0;4294967295", depending on sizeof(long) in the compiler. - struct.c: Try long long bitfield, but it will probably give the error, "bit field type long long does not fit in a word". - switch.c: Update comment. - tokenname.c: Define LNGLNG (long long) like LNGDBL (long double). - type.c, type.str: Add lnglng_type and ulnglng_type. Add function no_long_long() to check if long long is disabled.
2019-09-02 15:24:44 +00:00
lnglng_size,
Initial revision
1989-02-07 11:04:05 +00:00
float_size, double_size, lngdbl_size,
pointer_size;
many little changes: removed some lint complaints; max_int and max_unsigned are now constants if NOCROSS is defined; added lexstrict and expr_strict, and changed calls where needed
1989-11-08 16:52:34 +00:00
extern arith max_int, max_unsigned; /* cstoper.c */
Do not use '#endif/#else xxx'; it is not allowed for ANSI C
1991-12-17 13:12:22 +00:00
#else /* NOCROSS */
no casts in constants used in #if!
1989-11-09 18:07:14 +00:00
#define short_size ((arith)SZ_SHORT)
#define word_size ((arith)SZ_WORD)
#define dword_size ((arith)2*SZ_WORD)
#define int_size ((arith)SZ_INT)
#define long_size ((arith)SZ_LONG)
Begin to add `long long` to C compiler for linux386. Add long long type, but without literals; you can't say '123LL' yet. You can try constant operations, like `(long long)123 + 1`, but the compiler's `arith` type might not be wide enough. Conversions, shifts, and some other operations don't work in i386 ncg; I am using a union instead of conversions: union q { long long ll; unsigned long long ull; int i[2]; }; Hack plat/linux386/descr to enable long long (size 8, alignment 4) only for this platform. The default for other platforms is to disable long long (size -1). In lang/cem/cemcom.ansi, - BigPars, SmallPars: Add default size, alignment of long long. - align.h: Add lnglng_align. - arith.c: Convert arithmetic operands to long long or unsigned long long when necessary; avoid conversion from long long to long. Allow long long as an arithmetic, integral, or logical operand. - ch3.c: Handle long long like int and long when erroneously applying a selector, like `long long ll; ll.member` or `ll->member`. Add long long to integral and arithmetic types. - code.c: Add long long to type stabs for debugging. - conversion.c: Add long long to integral conversions. - cstoper.c: Write masks up to full_mask[8]. Add FIXME comment. - declar.g: Parse `long long` in code. - decspecs.c: Understand long long in type declarations. - eval.c: Add long long to operations, to generate code like `adi 8`. Don't use `ldc` with constant over 4 bytes. - ival.g: Allow long long in initializations. - main.c: Set lnglng_type and related values. - options.c: Add option like `-Vq8.4` to set long long to size 8, alignment 4. I chose 'q', because Perl's pack and Ruby's Array#pack use 'q' for 64-bit or long long values; it might be a reference to BSD's old quad_t alias for long long. - sizes.h: Add lnglng_size. - stab.c: Allow long long when writing the type stab for debugging. Switch from calculating the ranges to hardcoding them in strings; add 8-byte ranges as a special case. This also hardcodes the unsigned 4-byte range as "0;-1". Before it was either "0;-1" or "0;4294967295", depending on sizeof(long) in the compiler. - struct.c: Try long long bitfield, but it will probably give the error, "bit field type long long does not fit in a word". - switch.c: Update comment. - tokenname.c: Define LNGLNG (long long) like LNGDBL (long double). - type.c, type.str: Add lnglng_type and ulnglng_type. Add function no_long_long() to check if long long is disabled.
2019-09-02 15:24:44 +00:00
#define lnglng_size ((arith)SZ_LNGLNG)
no casts in constants used in #if!
1989-11-09 18:07:14 +00:00
#define float_size ((arith)SZ_FLOAT)
#define double_size ((arith)SZ_DOUBLE)
#define lngdbl_size ((arith)SZ_LNGDBL)
#define pointer_size ((arith)SZ_POINTER)
many little changes: removed some lint complaints; max_int and max_unsigned are now constants if NOCROSS is defined; added lexstrict and expr_strict, and changed calls where needed
1989-11-08 16:52:34 +00:00
no casts in constants used in #if!
1989-11-09 18:07:14 +00:00
#if SZ_INT == 2
many little changes: removed some lint complaints; max_int and max_unsigned are now constants if NOCROSS is defined; added lexstrict and expr_strict, and changed calls where needed
1989-11-08 16:52:34 +00:00
#define max_int ((arith)32767)
#define max_unsigned ((arith)65535)
no casts in constants used in #if!
1989-11-09 18:07:14 +00:00
#else /* SZ_INT == 4 */
many little changes: removed some lint complaints; max_int and max_unsigned are now constants if NOCROSS is defined; added lexstrict and expr_strict, and changed calls where needed
1989-11-08 16:52:34 +00:00
#define max_int ((arith)2147483647)
#define max_unsigned ((arith)4294967295)
#endif
Do not use '#endif/#else xxx'; it is not allowed for ANSI C
1991-12-17 13:12:22 +00:00
#endif /* NOCROSS */
Initial revision
1989-02-07 11:04:05 +00:00
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